body {
  margin-top: 44px;
  padding-top: 12.9333vw;
  padding-bottom: 50px;
  background-color: #fff;
}
.class_head {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 999;
  width: 100%;
  background-color: #fff;
}
.class_head .class_header {
  height: 44px;
  padding: 7px 3px;
  box-sizing: border-box;
  display: flex;
  justify-content: center;
}
.class_head .class_header .class_header_title {
  width: 610px;
  height: 30px;
  text-align: center;
  line-height: 30px;
  font-size: 16px;
}
.class_head .class_search {
  height: 12.9333vw;
  padding: 1.7333vw 1.7333vw 2.6667vw;
  box-sizing: border-box;
}
.class_head .class_search .class_search_seek {
  height: 8.5333vw;
  border-radius: 4.2667vw;
  background-color: #f7f7f7;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #6d6d6d;
}
.class_head .class_search .class_search_seek .iconfont {
  font-size: 4.6667vw;
  margin-right: 1.3333vw;
}
.class_head .class_search .class_search_seek span:nth-child(2) {
  font-size: 3.7333vw;
}
.class_main {
  display: flex;
  overflow: hidden;
}
.class_main .class_main_left {
  overflow-y: auto;
  height: 78vh;
}
.class_main .class_main_left::-webkit-scrollbar {
  display: none;
}
.class_main .class_main_left ul {
  display: flex;
  flex-direction: column;
  text-align: center;
  line-height: 12vw;
  width: 22.9333vw;
  background-color: #f7f7f7;
}
.class_main .class_main_left ul .active {
  background-color: #fff;
}
.class_main .class_main_left ul .active a {
  color: #fa2209;
}
.class_main .class_main_left ul li {
  display: flex;
  width: 100%;
}
.class_main .class_main_left ul li a {
  width: 100%;
  height: 100%;
  font-size: 3.7333vw;
}
.class_main .class_main_right {
  flex: 1;
  overflow-y: auto;
  height: 78vh;
  margin: 0.9333vw 1.3333vw 0;
  background-color: #fff;
}
.class_main .class_main_right::-webkit-scrollbar {
  display: none;
}
.class_main .class_main_right ul {
  display: flex;
  flex-wrap: wrap;
}
.class_main .class_main_right ul li {
  width: 33.33%;
}
.class_main .class_main_right ul li a {
  width: 100%;
  text-align: center;
}
.class_main .class_main_right ul li a .class_main_pic {
  width: 20.5333vw;
  height: 20.5333vw;
  padding: 2.1333vw 2.1333vw 0.5333vw;
}
.class_main .class_main_right ul li a .class_main_pic img {
  height: 100%;
}
.class_main .class_main_right ul li a .class_main_title {
  font-size: 3.4667vw;
  color: #444444;
  padding-bottom: 4vw;
}
